Rude service

As i like to go to Super spar at Menlyn Maine in Pretoria. It was 18h30 and i know they close at 19h00. As i am also from the industry working with customers, you offer your service until the door closes. I was inquiring about hot meals, i asked lady the price, answering me with her back turned to me. I turned to decide, she then took away the food on to a trolley. I then returned to request some where she definitely lost her temper with me and threw down one takeaway container and gave me a horrible look. I don't like to complain as i know what it feels like but you give service until the door closes. I am not happy at all. And after telling her to leave it she didn't look very bothered.